WestonEllis R. is my fav. combo (although it does depend on the final sound of the surname). Wilder doesn't work with an R surname, as it will slur. What about using Wilde? My favourite name on your list is Everett... quite a handsome name, and Ever would be a cute nn.

INTP Anthropologist Living in the centre of China, married to a Persian, and just enjoying a completely unpredictable life

Personally, I like one surname per combo so your pairings are not my style. I prefer an established and traditional boys name for at least one of the names. Individually, I like Zane, Everett, Donovan, Ellis and Wyatt as first names. EverettZane or ZaneEverett would be awesome combos!